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PACS instrument and calibration web pages

Observing with PACS

PACS photometer

PACS photometer data processing

  • The corresponding PACS Data Reduction Guide (PDRG) is PDRG version 6.

  • Data reduction scripts are now available in HIPE under the menu: Pipeline --> PACS --> Photometer - Scan map & mini-map

PACS photometer calibration

  • Point Spread Function: PACS Photometer Point Spread function, version 1.01, 3 November 2010. A detailed document of the in-flight observed PSF. The accompanying tarball can be found here.
  • Herschel/PACS modelled point spread functions is a related document presenting Zemax modelled point spread functions for both an `ideal' and an 'as built' Herschel telescope model. Tarballs with corresponding broad-band and monochromatic PSFs for these two cases are at Since the models do not capture all effects found in the observed PSFs, they are useful only in addition to the observed PSFs but cannot replace them.

  • PACS photometer photometry calibration: The current photometry accuracy based on version 5 of the responsivity calibration file is believed to be better than 10% for point-sources. It is currently being refined to target the 5% accuracy, but it will only be available in HCSS 7. Important: the encircled energy fraction (EEF) for point-sources corresponding to this energy scale are available in the technical note "PACS Photometer : chop/nod point-source & mini-scan map AOT release note", the colour correction factors as well. Note: The EEF to be used for photometry is consistent with version 5 of the responsivity calibration file, with a PSF normalization at 1 arcmin, and not with the latest PSF libraries posted above.

  • Extended emission photometry: it is believed to be consistent with IRAS and SPITZER/MIPS to better than 20%. To match with with other instruments/missions the use of the right convolution kernel is critical.

  • Point-source observations:

  • Scan map observations: PACS Scan Map AOT release note 23 February 2010. This technical note is somewhat outdated, the correction factors for the photometry shall not be applied anymore since the HCSS track 4.

PACS spectrometer

PACS spectrometer AOTs

PACS high-sampling chop/nod mode for Line Spectroscopy and Range Spectroscopy AOTs

PACS spectrometer data processing

PACS spectrometer calibration

-- BrunoAltieri - 18 Feb 2011

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf PACSPSF_PICC-ME-TN-029_v2.0.pdf r1 manage 3171.5 K 2010-11-05 - 16:28 BrunoAltieri  
PDFpdf PACS_ChoppedLineRange_ReleaseNote_19Jan2010.pdf r1 manage 826.4 K 2010-11-05 - 16:51 BrunoAltieri  
PDFpdf PACS_SEDRange_ReleaseNote_10Mar2010.pdf r1 manage 899.5 K 2010-11-05 - 16:55 BrunoAltieri  
PDFpdf PACS_ScanMap_ReleaseNote_23Feb2010.pdf r1 manage 641.2 K 2010-11-05 - 16:29 BrunoAltieri  
PDFpdf PACS_SpectroscopyPerformanceCalibration_11Mar2010.pdf r1 manage 429.3 K 2010-11-05 - 16:58 BrunoAltieri  
PDFpdf PACS_Unchopped_ReleaseNote_20Sep2010.pdf r1 manage 1270.2 K 2010-11-05 - 16:56 BrunoAltieri  
PDFpdf PACS_WaveSwitching_ReleaseNote_20Jan2010.pdf r1 manage 417.5 K 2010-11-05 - 16:54 BrunoAltieri  
PDFpdf PhotMiniScan_ReleaseNote_20101104.pdf r1 manage 1987.2 K 2010-11-05 - 16:29 BrunoAltieri  
PDFpdf PhotMiniScan_ReleaseNote_20101112.pdf r1 manage 1988.8 K 2010-11-15 - 10:53 BrunoAltieri  
PDFpdf SimulPSP_v1.0.pdf r1 manage 5323.7 K 2010-11-15 - 11:16 BrunoAltieri  
PDFpdf aa14535-10.pdf r1 manage 1571.0 K 2010-11-04 - 16:23 BrunoAltieri  
PDFpdf bolopsfv1.01.pdf r1 manage 5658.9 K 2010-11-05 - 16:27 BrunoAltieri  
PDFpdf pacs_drg.pdf r1 manage 3818.2 K 2011-02-14 - 14:58 BrunoAltieri PACS Data Reduction Guide, version 6
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Topic revision: r12 - 2011-02-24 - BrunoAltieri
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